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Network slice resource management method based on state awareness

A resource management and network slicing technology, applied in data exchange network, advanced technology, wireless communication, etc., can solve problems such as reconfiguration VNF migration

Active Publication Date: 2020-08-07
CHONGQING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, reconfiguring link resources will also involve the migration of some VNFs to other servers, so the computing resources in the slice may also need to be reconfigured

Method used

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  • Network slice resource management method based on state awareness
  • Network slice resource management method based on state awareness
  • Network slice resource management method based on state awareness

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Experimental program
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Embodiment Construction

[0038] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0039] see figure 1 , figure 1 It is a schematic diagram of network slicing in the present invention.

[0040] Among them, the application layer is mainly responsible for providing VNFs to form SFCs for this slice, and completing a series of protocol stack functions in an orderly manner through SFCs. The virtualization layer is responsible for managing and controlling the entire slice network. This model specifically includes resource management and status observation. The physical layer includes the physical resources that implement the slice, including DU pools and CU pools, and the two communicate with each other through the fronthaul network. The CU pool is a physical network composed of general-purpose servers, and the DU pool is a network composed of servers and RRUs.

[0041] Based on uplink conditions, each UE in the slice has one S...

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Abstract

The invention relates to a network slice resource management method based on state awareness, and belongs to the technical field of mobile communication. The method comprises the following steps: abstracting a resource management problem of an access network slice with mobile UE into an MDP model; considering the joint allocation of calculation, links and wireless resources in the model, and reducing the data loss caused by the migration of a virtual network function (VNF) while the time delay is optimized; meanwhile, in consideration of an unknown state transition probability, using a deep reinforcement learning (DQN) method to solve a Markov decision process (MDP) problem. According to the method provided by the invention, the time delay increase caused by UE movement can be effectivelyreduced, and the data loss condition can be improved.

Description

technical field [0001] The invention belongs to the technical field of mobile communication, and relates to a state-aware-based network slice resource management method. Background technique [0002] A network slice is a logical network, which is used to implement a certain communication service. The slice contains several service function chains. Each service function chain is composed of several VNFs in an orderly manner. Each VNF completes a protocol. functions, a series of VNFs can complete the functions of the entire protocol stack. These VNFs are instantiated and run on general servers in the form of software, and the execution of VNFs requires the support of resources. In access network slicing, not only the dynamically changing network topology will affect resource allocation, but also the movement of terminals will deteriorate the communication service quality so that it is necessary to adjust the resource arrangement and mapping in the access network slice. There...

Claims

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Application Information

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IPC IPC(8): H04L12/24H04W24/02
CPCH04L41/0893H04W24/02Y02D30/70
Inventor 陈前斌王兆堃管令进唐伦刘占军
Owner CHONGQING UNIV OF POSTS & TELECOMM
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